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发明名称
Feeding device for pilger rolling mills
摘要
申请公布号
US1936475(A)
申请公布日期
1933.11.21
申请号
US19300473248
申请日期
1930.08.05
申请人
HERMANN FRITSCH
发明人
FRITSCH HERMANN
分类号
B21B21/04
主分类号
B21B21/04
代理机构
代理人
主权项
地址
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